61620562102 has 32 divisors (see below), whose sum is σ = 105370585344. Its totient is φ = 26752624800.

The previous prime is 61620562067. The next prime is 61620562127. The reversal of 61620562102 is 20126502616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261528 + ... + 437764.

It is an arithmetic number, because the mean of its divisors is an integer number (3292830792).

Almost surely, 2^61620562102 is an apocalyptic number.

61620562102 is a deficient number, since it is larger than the sum of its proper divisors (43750023242).

61620562102 is a wasteful number, since it uses less digits than its factorization.

61620562102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176964.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 61620562102 in words is "sixty-one billion, six hundred twenty million, five hundred sixty-two thousand, one hundred two".